全局注册滚动/mixins/base.js :

// tabbar切换样式
        tabbarIsShow(isShow){
            if (typeof this.$mp.page.getTabBar === 'function' &&
                this.$mp.page.getTabBar()) {
                this.$mp.page.getTabBar().tabbarIsShow(isShow)
            }
        },

发现页注册/pages/tabbar/circle/circle.vue ：

onPageScroll(e) {
            let that = this;
            let scroll_distance = (e.scrollTop - that.prevScrollTop);
            if (scroll_distance > 8 && e.scrollTop >= 65 && scroll_distance <= 65) {
                this.tabbarIsShow(false)
            } else if(scroll_distance < -8 && scroll_distance >= -65) {
                this.tabbarIsShow(true)
            }
            that.prevScrollTop = e.scrollTop;
        },
        /**
         * 用户点击右上角分享
         */

首页注册/pages/tabbar/index/index ：

onPageScroll(e) {
            let that = this;
            let scroll_distance = (e.scrollTop - that.prevScrollTop);
            if (scroll_distance > 8) {
                if(e.scrollTop >= 65){
                    if(scroll_distance >= 65){
                        that.subNavHeaderTranslateClass = 'subNavHeaderHidden';
                    }else{
                        that.subNavHeaderTranslateClass = 'subNavHeaderHiddenLowly';
                        this.tabbarIsShow(false)
                    }
                }
            } else if(scroll_distance < -8) {
                if(scroll_distance <= -65){
                    that.subNavHeaderTranslateClass = 'subNavHeaderShow';
                }else{
                    that.subNavHeaderTranslateClass = 'subNavHeaderShowLowly';
                    this.tabbarIsShow(true)
                }
            }else{
                // that.subNavHeaderTranslateClass = '';
            }
            that.prevScrollTop = e.scrollTop;
        },

个人中心页/pages/tabbar/mine/mine. ：

        onPageScroll: function onPageScroll(e) {
            let that = this;
            let scroll_distance = (e.scrollTop - that.prevScrollTop);
            if (scroll_distance > 8 && e.scrollTop >= 65 && scroll_distance <= 65) {
                this.tabbarIsShow(false)
            } else if(scroll_distance < -8 && scroll_distance >= -65) {
                this.tabbarIsShow(true)
            }
            that.prevScrollTop = e.scrollTop;

            var trans = (e.scrollTop > 55 ? 55 : e.scrollTop) / 55;

            if(trans > 1 && that.navbarTrans > 1){
                return false;
            }

            var frontColor = '#ffffff';
            var backgroundColor = '#000000';
            var iconTheme = that.iconTheme;


            if (trans <= 0) {
                frontColor = '#ffffff';
                backgroundColor = '#000000';
                iconTheme = 'white';
            } else if (trans >= 0.4) {
                frontColor = '#000000';
                backgroundColor = '#ffffff';  
                iconTheme = 'black';
            }

            that.setData({
                navbarTrans: trans,
                iconTheme: iconTheme,
            });
            uni.setNavigationBarColor({
                frontColor: frontColor,
                backgroundColor: frontColor,
                animation: {
                    duration: 400,
                    timingFunc: 'easeIn',
                }
            });

        },

消息页/pages/tabbar/notice/notice ：

复制onPageScroll(e) {
        let that = this;
        let scroll_distance = (e.scrollTop - that.prevScrollTop);
        if (scroll_distance > 8 && e.scrollTop >= 65 && scroll_distance <= 65) {
            this.tabbarIsShow(false)
        } else if(scroll_distance < -8 && scroll_distance >= -65) {
            this.tabbarIsShow(true)
        }
        that.prevScrollTop = e.scrollTop;
    },
    /**
     * 页面相关事件处理函数--监听用户下拉动作
     */

个人使用，可以忽略